text: ﻿// NOTICE!! DO NOT USE ANY OF THIS JAVASCRIPT
  // IT'S JUST JUNK FOR OUR DOCS!
  // ++++++++++++++++++++++++++++++++++++++++++
  /*!
   * Copyright 2014-2015 Twitter, Inc.
   *
   * Licensed under the Creative Commons Attribution 3.0 Unported License. For
   * details, see https://creativecommons.org/licenses/by/3.0/.
   */
  // Intended to prevent false-positive bug reports about Bootstrap not working properly in old versions of IE due to folks testing using IE's unreliable emulation modes.
  (function () {
      "use strict";
  
      function emulatedIEMajorVersion() {
          var groups = /MSIE ([0-9.]+)/.exec(window.navigator.userAgent)
          if (groups === null) {
              return null
          }
          var ieVersionNum = parseInt(groups[1], 10)
          var ieMajorVersion = Math.floor(ieVersionNum)
          return ieMajorVersion
      }
  
      function actualNonEmulatedIEMajorVersion() {
          // Detects the actual version of IE in use, even if it's in an older-IE emulation mode.
          // IE JavaScript conditional compilation docs: https://msdn.microsoft.com/library/121hztk3%28v=vs.94%29.aspx
          // @cc_on docs: https://msdn.microsoft.com/library/8ka90k2e%28v=vs.94%29.aspx
          var jscriptVersion = new Function("/*@cc_on return @_jscript_version; @*/")() // jshint ignore:line
          if (jscriptVersion === undefined) {
              return 11 // IE11+ not in emulation mode
          }
          if (jscriptVersion < 9) {
              return 8 // IE8 (or lower; haven't tested on IE<8)
          }
          return jscriptVersion // IE9 or IE10 in any mode, or IE11 in non-IE11 mode
      }
  
      var ua = window.navigator.userAgent
      if (ua.indexOf("Opera") > -1 || ua.indexOf("Presto") > -1) {
          return // Opera, which might pretend to be IE
      }
      var emulated = emulatedIEMajorVersion()
      if (emulated === null) {
          return // Not IE
      }
      var nonEmulated = actualNonEmulatedIEMajorVersion()
  
      if (emulated !== nonEmulated) {
          window.alert("WARNING: You appear to be using IE" + nonEmulated + " in IE" + emulated + " emulation mode.\nIE emulation modes can behave significantly differently from ACTUAL older versions of IE.\nPLEASE DON'T FILE BOOTSTRAP BUGS based on testing in IE emulation modes!")
      }
  })();
  